Equipment for precipitation of pollutants from the off-gas of a pollutant source, particularly of a tentering frame
AssigneeKoenig AG
InventorArthur Natter
Life of this patent
Estimating the term…
Abstract
A system for precipitation of pollutants from an off-gas, wherein the off-gas is cooled in a smooth-tube heat exchanger (13). The off-gas flows through a bundle of tubes (19) which extend vertically or tilted inside the heat exchanger. Cold water is introduced at a secondary side connection (43) of the heat exchanger (13). An air stripper (36) and a mist eliminator (26), and an optional electrostatic filter (27), are installed downstream of the heat exchanger (13). In the heat exchanger (13) and the air stripper (36), a portion of the condensable pollutants condenses out and a portion of the water-solubles and solids are precipitated. The system can be cleaned automatically and requires only a small placement area.
Claims6
A system for precipitation of pollutants from the off-gas of a pollution source (1), comprising:
- a smooth tube heat exchanger (13) including:
- a bundle of smooth, non-ribbed tubes (19) disposed vertically or at an angle inside said heat exchanger, the off-gas passing through said tubes, said tubes opening into an entrance chamber (11) at a top of said heat exchanger and an exit chamber (21) at a bottom of said heat exchanger;
- an entrance connector disposed adjacent to the exit chamber (21) for introducing a cooling medium into said heat exchanger, said cooling medium flowing in an annular region between said tubes and an inner wall of said heat exchanger;
- and
- an exit connector through which the cooling medium exits said heat exchanger;
- a mist eliminator (26) disposed downstream of said heat exchanger (13);
- and
- an off-gas stripper (36) disposed below said heat exchanger (13) and upstream of said mist eliminator (26).
Dependencies are inferred from the claim text.